About as subtle as Google+ (Available options: 'sign up now', or 'learn more'. Conspicious by its absence: 'do fuck off'), for which apologies, but at least I'm not depriving you of the unmitigated torrent of wisdom and human compassion that is the youtube comments section.
Meanwhile, in
my other life as a mild-mannered linguistics student (I wear glasses don't you know. As alter ego disguises go it's utterly foolproof) I've written a couple of longer posts, trying to thrash out some ideas regarding Teacher Talk in the ELT classroom.
This may or (more likely) may not be your thing, but if any of you fancy having a look and offering suggestions or criticism (or even abuse as long as it's funny) I'd be much obliged -
Efficiency and Redundancy in the L2 Classroom